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US Patent 7887444 Racquet having articulating grommet assemblies

Patent 7887444 was granted and assigned to Wilson Sporting Goods Co. on February, 2011 by the United States Patent and Trademark Office.

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Patent
Patent

Patent attributes

Current Assignee
Wilson Sporting Goods Co.
Wilson Sporting Goods Co.
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
7887444
Date of Patent
February 15, 2011
Patent Application Number
12641957
Date Filed
December 18, 2009
Patent Citations Received
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US Patent 11986705 Racquet configured with increased flexibility in multiple directions with respect to a longitudinal axis
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US Patent 11986706 Racquet configured with increased flexibility in multiple directions with respect to a longitudinal axis
0
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US Patent D1023203 Tennis racket frame
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Patent Primary Examiner
‌
Raleigh W. Chiu
Patent abstract

A sports racquet including a frame, at least one grommet assembly. The frame includes a head portion coupled to a handle portion. The head portion includes a hoop having inner and outer peripheral walls. At least a first set of concave recesses and channels are formed into the outer peripheral wall. The hoop includes first, second and third groups of string openings. The second and third groups of string openings are aligned with the first set of concave recesses. The second group of string openings extends through the outer peripheral wall at the first set of concave recesses. The grommet assembly engages the outer peripheral wall. The grommet assembly includes at least three pivotable elements interconnected by torque transmitting arms, each pivotable element including a string passage. The pivotable elements and the torque transmitting arms are pivotable about an axis parallel to a string bed plane.

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